What kind or area of engineering?
The ratings mentioned above is to "Manhandle" the setup in the worst day out there.
Being at to over the ratings limits...says you will have less to no safety margin to 'Manhandle' the situation...when you might need all of that safety margin spot on...not time to go back to the store for bigger/better....or the mentality that, that day Mr Murphy cross the path only happens: "To the other guy"...
Maybe the fake half ton is the right thing for you, as they are/were designed for folks who insist on only a half ton... Most half tons are in the 6K GVWR and 4K RGAWR range. Older half ton HD were 7.8K GVWR and just under 6K RGAWR. Today's fake half tons are in the low 7K GVWR and below 5K RGAWR. Vs 3/4 ton's +8K GVWR and 6K RGAWR...not to mention the larger frame, larger suspension, Diff, etc, etc
My Silverado in sig was mom'n dad's specialty grocery/butcher shop I ordered for dad. He insisted on only a half ton for ride quality and since most all pickups have the exact same base body from half ton up through the higher classes...he though the 8 foot bed is all it takes...
Picking up produce, loads of chicken/turkeys, canned goods, etc in the +2K to 3K pound range...installed 1 ton coil helper springs. Solved the loaded down to bump stops...but...the wallowing was still there. Albeit a bit better with those 1 ton helper springs.
It still 'can' do it today while being 37 years old loaded with fire wood or fire pellets...but know it and only take streets. The rear axle bearings come apart often and replacing them only takes an hour or so. The roller bearing cage deforms to allow one or more rollers to come out and into the axle tube.
It has LT flotation tires and better ride quality than the LT tires most half tonner's consider. As your thoughts of going to higher class tires will reduce the ride quality, but improve the TVness
Good luck